465
CDUS41 KLWX 122121
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
421 PM EST TUE DEC 12 2023
...............................
..THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR DECEMBER 12 2023
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 49 2:51 PM 72 1979 47 2 43
MINIMUM 23 7:15 AM 9 1988 30 -7 37
AVERAGE 36 38 -2 40
PRECIPITATION (IN)
TODAY 0.00 0.95 1964 0.11 -0.11 0.00
MONTH TO DATE 2.46 1.37 1.09 0.40
SINCE DEC 1 2.46 1.37 1.09 0.40
SINCE JAN 1 31.49 41.31 -9.82 36.21
SNOWFALL (IN)
TODAY 0.0 10.6 1982 0.1 -0.1 0.0
MONTH TO DATE 0.5 0.9 -0.4 0.0
SINCE DEC 1 0.5 0.9 -0.4 0.0
SINCE JUL 1 0.5 1.2 -0.7 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 29 27 2 25
MONTH TO DATE 254 303 -49 283
SINCE DEC 1 254 303 -49 283
SINCE JUL 1 1025 1203 -178 1117
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1380 1231 149 1376
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 4.2
SKY COVER
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85 6:00 AM
LOWEST 39 2:00 PM
AVERAGE 62
......................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 73 2015
MINIMUM TEMPERATURE (F) 29 7 1988
SUNRISE AND SUNSET
DECEMBER 12 2023......SUNRISE 7:19 AM EST SUNSET 4:48 PM EST
DECEMBER 13 2023......SUNRISE 7:20 AM EST SUNSET 4:48 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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